Assigned ID: 590 ----- Attempting Submission 1 (Fri Feb 25 20:18:01 GMT 2011) ----- HST Phase I Proposal 590 (iclar.pdf.apt) successfully submitted. ----- Attempting Submission 2 (Fri Feb 25 21:24:12 GMT 2011) ----- HST Phase I Proposal 590 (iclar.pdf.apt) successfully submitted. ----- Attempting Submission 3 (Sat Feb 26 01:14:16 GMT 2011) ----- We propose to use archival data from the CLASH Multicycle Treasury Program to study intracluster light in massive clusters. The primary objectives of this program are (1) to obtain a complete census of stars in both member galaxies and intracluster light within r500 for a representative sample of clusters, and (2) to use the luminosity distribution and colors of the intracluster stellar population to constrain the origin of intracluster light. As demonstrated by our Cycle 16 program on the Bullet Cluster, WFC3 offers a major step forward for studies of diffuse stellar populations, enabling a vast improvement over previous ground-based studies of intracluster light and total baryon content in groups and clusters. We will use the archival CLASH data to quantify the total stellar baryon content in 10 massive clusters and provide the first ever measurement of the evolution of the ICL. A complementary GO proposal targeting groups has been submitted to extend the mass baseline of our stellar baryon census to lower mass.

UNRESOLVED STELLAR POPULATIONS AND GALAXY STRUCTURE 12 Medium false 0.0 0.0 false false false false SUPPORTED